If you use Java 1.5 and try to use Axis 1.1’s WSDL2Java utility to read a WSDL file and generate Java stubs, you will notice that when the utility generates Enumeration objects which it names enum. Enum is a keyword in Java 1.5 (whoopie!) – so your code will not compile. This sucks.
Update: April 19, 2005
To make the compilation work, use the -source 1.4 switch. In the Ant javac task, add the source attribute and set it to 1.4.